Plymouth County Reappraisal Project 

Plymouth County Assessor, Jill Renken, is announcing that door-to-door inspections of all town residential, rural residential, ag dwellings, commercial, and industrial properties in Plymouth County will begin in mid-May or early June.  Representatives of Vanguard Appraisals, Inc. in conjunction with the Plymouth County Assessor’s Office will be conducting this project. 

A reappraisal project was approved by the Conference Board in February, 2019.

The purpose of the reappraisal project is to equalize property assessments so that each taxpayer is responsible for paying only his/her fair share of the property tax burden.  Periodic inspections and reappraisals are necessary to update information and adjust for market conditions affecting property values. Some properties physically deteriorate faster than others, and in many instances similar homes located in different areas of the county will differ greatly in value due to economic factors.

Letters will be sent to property owners with further details closer to when data collectors will be in their town or rural area. 

Preliminary data collection will begin in Le Mars and then move to the small towns, rural dwellings, and commercial and industrial properties. The project is to be completed December 31, 2023.  

Each Vanguard employee has had a full background check and will have photo IDs signed by the Assessor and will attempt to do interior and exterior inspections of all properties. They will be compiling information to be used to estimate the fair market value of each property.  Information to be collected includes type of construction, type of interior finish, physical condition of the property, age of structures, and exterior measurements.  A complete sales analysis, local construction costs, and economic conditions are also considered.  No estimate of value will be given at the time of inspection.

Property owners are asked to cooperate by allowing a complete inspection of their property and providing accurate information so that a fair and equitable assessment may be determined for each property. 

Notice of final value estimates will be mailed to each property owner after January 1, 2024.  The property owners will have an opportunity to meet informally to discuss their revaluation in the spring of 2024.

The new assessed values will be effective January 1, 2024, for taxes payable in fiscal 2025-2026.

All law enforcement agencies as well as the Plymouth County Assessor’s Office will be apprised of the areas where data collectors are working.  They will also have a listing of all names and license plate numbers of anyone involved in the project.

If any property owner has questions regarding the reappraisal project, they are urged to contact the Plymouth County Assessor’s Office at 712-546-4705 or email: jrenken@plymouthcountyiowa.govcreate new email.  Information regarding the reappraisal project will also be posted on the Plymouth County website at


Each Vanguard employee has had a full background check and will have a photo ID signed by the Plymouth County Assessor identifying them as such. All law enforcement agencies will be notified of Vanguard employees’ names involved in the project, auto license numbers, and will be informed of the areas where data collectors are working.  Vanguard employees below:

Robert Bellmer
Micah Hoffman
Lynn Wold
Garrett Reed
Ryan Brunssen
Kyle Andersen
Brian Leinen
Rick Droog
Zach Leisinger
Scott Johnson
Ted Goslinga
Justin Joerger
Chris Wiese
Jeremy Farar
Seth Niichel